Ines I am against the wearer can have any power about her belt.
Even if you have,as you can say you would stop wearing it,and your parents would give you the key.You would not do it as you're a willingly wearer,but you can.
Most of the reluctant wearers can too,if they accept the consequences.As the convinced ones,if they accept to lose the advantages.
HHelen He claims that every girl is able to do the same.
But many here have strong doubts about it.
GoodyProctor Learning it if you're being watched all the time, that's a different matter.
Which seem close to @HHelen's daughter's case.I doubt she can learn it without her mother knowing it.